Duckbill Check Valve Proflex 720

The Proco ProFlex™ 720 in-line flanged rubber duckbill check valve is designed to fit directly inside of an existing pipe.


This particular valve is supplied with a flat face rubber flange, which allows installation between existing pipe flanges, and eliminates the need for a valve body. Various drilling standards are available upon request.


Also referred to as:


- Duckbill Valve

- Duckbill Check Valve


Some notable features of the Proco ProFlex™ Style 720 rubber Duckbill Check valve include:


All-rubber construction to resist abrasive slurries


NSF 61 standard construction


Ultra-quiet operation, with no water hammer


Unique design to prevent backflow


Negligible maintenance and energy costs


Will not warp or freeze


Quick interchange with any flap type check valve


Available in sizes from 1” to 96”


Available with special ID to suit concrete pipe

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